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TimeTrex Community Edition v16.2.0

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Timotheus Pokorra
2022-12-13 07:10:06 +01:00
commit 472f000c1b
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classes/pear/HTTP/Header.php Normal file
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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* HTTP::Header
*
* PHP versions 4 and 5
*
* @category HTTP
* @package HTTP_Header
* @author Wolfram Kriesing <wk@visionp.de>
* @author Davey Shafik <davey@php.net>
* @author Michael Wallner <mike@php.net>
* @copyright 2003-2005 The Authors
* @license BSD, revised
* @version CVS: $Id: Header.php,v 1.32 2005/11/08 19:06:10 mike Exp $
* @link http://pear.php.net/package/HTTP_Header
*/
/**
* Requires HTTP
*/
require_once 'HTTP.php';
/**#@+
* Information Codes
*/
define('HTTP_HEADER_STATUS_100', '100 Continue');
define('HTTP_HEADER_STATUS_101', '101 Switching Protocols');
define('HTTP_HEADER_STATUS_102', '102 Processing');
define('HTTP_HEADER_STATUS_INFORMATIONAL',1);
/**#@-*/
/**#+
* Success Codes
*/
define('HTTP_HEADER_STATUS_200', '200 OK');
define('HTTP_HEADER_STATUS_201', '201 Created');
define('HTTP_HEADER_STATUS_202', '202 Accepted');
define('HTTP_HEADER_STATUS_203', '203 Non-Authoritative Information');
define('HTTP_HEADER_STATUS_204', '204 No Content');
define('HTTP_HEADER_STATUS_205', '205 Reset Content');
define('HTTP_HEADER_STATUS_206', '206 Partial Content');
define('HTTP_HEADER_STATUS_207', '207 Multi-Status');
define('HTTP_HEADER_STATUS_SUCCESSFUL',2);
/**#@-*/
/**#@+
* Redirection Codes
*/
define('HTTP_HEADER_STATUS_300', '300 Multiple Choices');
define('HTTP_HEADER_STATUS_301', '301 Moved Permanently');
define('HTTP_HEADER_STATUS_302', '302 Found');
define('HTTP_HEADER_STATUS_303', '303 See Other');
define('HTTP_HEADER_STATUS_304', '304 Not Modified');
define('HTTP_HEADER_STATUS_305', '305 Use Proxy');
define('HTTP_HEADER_STATUS_306', '306 (Unused)');
define('HTTP_HEADER_STATUS_307', '307 Temporary Redirect');
define('HTTP_HEADER_STATUS_REDIRECT',3);
/**#@-*/
/**#@+
* Error Codes
*/
define('HTTP_HEADER_STATUS_400', '400 Bad Request');
define('HTTP_HEADER_STATUS_401', '401 Unauthorized');
define('HTTP_HEADER_STATUS_402', '402 Payment Granted');
define('HTTP_HEADER_STATUS_403', '403 Forbidden');
define('HTTP_HEADER_STATUS_404', '404 File Not Found');
define('HTTP_HEADER_STATUS_405', '405 Method Not Allowed');
define('HTTP_HEADER_STATUS_406', '406 Not Acceptable');
define('HTTP_HEADER_STATUS_407', '407 Proxy Authentication Required');
define('HTTP_HEADER_STATUS_408', '408 Request Time-out');
define('HTTP_HEADER_STATUS_409', '409 Conflict');
define('HTTP_HEADER_STATUS_410', '410 Gone');
define('HTTP_HEADER_STATUS_411', '411 Length Required');
define('HTTP_HEADER_STATUS_412', '412 Precondition Failed');
define('HTTP_HEADER_STATUS_413', '413 Request Entity Too Large');
define('HTTP_HEADER_STATUS_414', '414 Request-URI Too Large');
define('HTTP_HEADER_STATUS_415', '415 Unsupported Media Type');
define('HTTP_HEADER_STATUS_416', '416 Requested range not satisfiable');
define('HTTP_HEADER_STATUS_417', '417 Expectation Failed');
define('HTTP_HEADER_STATUS_422', '422 Unprocessable Entity');
define('HTTP_HEADER_STATUS_423', '423 Locked');
define('HTTP_HEADER_STATUS_424', '424 Failed Dependency');
define('HTTP_HEADER_STATUS_CLIENT_ERROR',4);
/**#@-*/
/**#@+
* Server Errors
*/
define('HTTP_HEADER_STATUS_500', '500 Internal Server Error');
define('HTTP_HEADER_STATUS_501', '501 Not Implemented');
define('HTTP_HEADER_STATUS_502', '502 Bad Gateway');
define('HTTP_HEADER_STATUS_503', '503 Service Unavailable');
define('HTTP_HEADER_STATUS_504', '504 Gateway Time-out');
define('HTTP_HEADER_STATUS_505', '505 HTTP Version not supported');
define('HTTP_HEADER_STATUS_507', '507 Insufficient Storage');
define('HTTP_HEADER_STATUS_SERVER_ERROR',5);
/**#@-*/
/**
* HTTP_Header
*
* @package HTTP_Header
* @category HTTP
* @access public
* @version $Revision: 1.32 $
*/
class HTTP_Header extends HTTP
{
/**
* Default Headers
*
* The values that are set as default, are the same as PHP sends by default.
*
* @var array
* @access private
*/
var $_headers = array(
'content-type' => 'text/html',
'pragma' => 'no-cache',
'cache-control' => 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0'
);
/**
* HTTP version
*
* @var string
* @access private
*/
var $_httpVersion = '1.0';
/**
* Constructor
*
* Sets HTTP version.
*
* @access public
* @return object HTTP_Header
*/
function __construct()
{
if (isset($_SERVER['SERVER_PROTOCOL'])) {
$this->setHttpVersion(substr($_SERVER['SERVER_PROTOCOL'], -3));
}
}
/**
* Set HTTP version
*
* @access public
* @return bool Returns true on success or false if version doesn't
* match 1.0 or 1.1 (note: 1 will result in 1.0)
* @param mixed $version HTTP version, either 1.0 or 1.1
*/
function setHttpVersion($version)
{
$version = round((float) $version, 1);
if ($version < 1.0 || $version > 1.1) {
return false;
}
$this->_httpVersion = sprintf('%0.1f', $version);
return true;
}
/**
* Get HTTP version
*
* @access public
* @return string
*/
function getHttpVersion()
{
return $this->_httpVersion;
}
/**
* Set Header
*
* The default value for the Last-Modified header will be current
* date and atime if $value is omitted.
*
* @access public
* @return bool Returns true on success or false if $key was empty or
* $value was not of an scalar type.
* @param string $key The name of the header.
* @param string $value The value of the header. (NULL to unset header)
*/
function setHeader($key, $value = null)
{
if (empty($key) || (isset($value) && !is_scalar($value))) {
return false;
}
$key = strToLower($key);
if ($key == 'last-modified') {
if (!isset($value)) {
$value = HTTP::Date(time());
} elseif (is_numeric($value)) {
$value = HTTP::Date($value);
}
}
if (isset($value)) {
$this->_headers[$key] = $value;
} else {
unset($this->_headers[$key]);
}
return true;
}
/**
* Get Header
*
* If $key is omitted, all stored headers will be returned.
*
* @access public
* @return mixed Returns string value of the requested header,
* array values of all headers or false if header $key
* is not set.
* @param string $key The name of the header to fetch.
*/
function getHeader($key = null)
{
if (!isset($key)) {
return $this->_headers;
}
$key = strToLower($key);
if (!isset($this->_headers[$key])) {
return false;
}
return $this->_headers[$key];
}
/**
* Send Headers
*
* Send out the header that you set via setHeader().
*
* @access public
* @return bool Returns true on success or false if headers are already
* sent.
* @param array $keys Headers to (not) send, see $include.
* @param array $include If true only $keys matching headers will be
* sent, if false only header not matching $keys will be
* sent.
*/
function sendHeaders($keys = array(), $include = true)
{
if (headers_sent()) {
return false;
}
if (count($keys)) {
array_change_key_case($keys, CASE_LOWER);
foreach ($this->_headers as $key => $value) {
if ($include ? in_array($key, $keys) : !in_array($key, $keys)) {
header($key .': '. $value);
}
}
} else {
foreach ($this->_headers as $header => $value) {
header($header .': '. $value);
}
}
return true;
}
/**
* Send Satus Code
*
* Send out the given HTTP-Status code. Use this for example when you
* want to tell the client this page is cached, then you would call
* sendStatusCode(304).
*
* @see HTTP_Header_Cache::exitIfCached()
*
* @access public
* @return bool Returns true on success or false if headers are already
* sent.
* @param int $code The status code to send, i.e. 404, 304, 200, etc.
*/
function sendStatusCode($code)
{
if (headers_sent()) {
return false;
}
if ($code == (int) $code && defined('HTTP_HEADER_STATUS_'. $code)) {
$code = constant('HTTP_HEADER_STATUS_'. $code);
}
if (strncasecmp(PHP_SAPI, 'cgi', 3)) {
header('HTTP/'. $this->_httpVersion .' '. $code);
} else {
header('Status: '. $code);
}
return true;
}
/**
* Date to Timestamp
*
* Converts dates like
* Mon, 31 Mar 2003 15:26:34 GMT
* Tue, 15 Nov 1994 12:45:26 GMT
* into a timestamp, strtotime() didn't do it in older versions.
*
* @deprecated Use PHPs strtotime() instead.
* @access public
* @return mixed Returns int unix timestamp or false if the date doesn't
* seem to be a valid GMT date.
* @param string $date The GMT date.
*/
function dateToTimestamp($date)
{
static $months = array(
null => 0, 'Jan' => 1, 'Feb' => 2, 'Mar' => 3, 'Apr' => 4,
'May' => 5, 'Jun' => 6, 'Jul' => 7, 'Aug' => 8, 'Sep' => 9,
'Oct' => 10, 'Nov' => 11, 'Dec' => 12
);
if (-1 < $timestamp = strToTime($date)) {
return $timestamp;
}
if (!preg_match('~[^,]*,\s(\d+)\s(\w+)\s(\d+)\s(\d+):(\d+):(\d+).*~',
$date, $m)) {
return false;
}
// [0] => Mon, 31 Mar 2003 15:42:55 GMT
// [1] => 31 [2] => Mar [3] => 2003 [4] => 15 [5] => 42 [6] => 55
return mktime($m[4], $m[5], $m[6], $months[$m[2]], $m[1], $m[3]);
}
/**
* Redirect
*
* This function redirects the client. This is done by issuing a Location
* header and exiting. Additionally to HTTP::redirect() you can also add
* parameters to the url.
*
* If you dont need parameters to be added, simply use HTTP::redirect()
* otherwise use HTTP_Header::redirect().
*
* @see HTTP::redirect()
* @author Wolfram Kriesing <wk@visionp.de>
* @access public
* @return void
* @param string $url The URL to redirect to, if none is given it
* redirects to the current page.
* @param array $param Array of query string parameters to add; usually
* a set of key => value pairs; if an array entry consists
* only of an value it is used as key and the respective
* value is fetched from $GLOBALS[$value]
* @param bool $session Whether the session name/id should be added
*/
function redirect($url = null, $param = array(), $session = false)
{
if (!isset($url)) {
$url = $_SERVER['PHP_SELF'];
}
$qs = array();
if ($session) {
$qs[] = session_name() .'='. session_id();
}
if (is_array($param) && count($param)) {
if (count($param)) {
foreach ($param as $key => $val) {
if (is_string($key)) {
$qs[] = urlencode($key) .'='. urlencode($val);
} else {
$qs[] = urlencode($val) .'='. urlencode(@$GLOBALS[$val]);
}
}
}
}
if ($qstr = implode('&', $qs)) {
$purl = parse_url($url);
$url .= (isset($purl['query']) ? '&' : '?') . $qstr;
}
parent::redirect($url);
}
/**#@+
* @author Davey Shafik <davey@php.net>
* @param int $http_code HTTP Code to check
* @access public
*/
/**
* Return HTTP Status Code Type
*
* @return int|false
*/
function getStatusType($http_code)
{
if(is_int($http_code) && defined('HTTP_HEADER_STATUS_' .$http_code) || defined($http_code)) {
$type = substr($http_code,0,1);
switch ($type) {
case HTTP_HEADER_STATUS_INFORMATIONAL:
case HTTP_HEADER_STATUS_SUCCESSFUL:
case HTTP_HEADER_STATUS_REDIRECT:
case HTTP_HEADER_STATUS_CLIENT_ERROR:
case HTTP_HEADER_STATUS_SERVER_ERROR:
return $type;
break;
default:
return false;
break;
}
} else {
return false;
}
}
/**
* Return Status Code Message
*
* @return string|false
*/
function getStatusText($http_code)
{
if ($this->getStatusType($http_code)) {
if (is_int($http_code) && defined('HTTP_HEADER_STATUS_' .$http_code)) {
return substr(constant('HTTP_HEADER_STATUS_' .$http_code),4);
} else {
return substr($http_code,4);
}
} else {
return false;
}
}
/**
* Checks if HTTP Status code is Information (1xx)
*
* @return boolean
*/
function isInformational($http_code)
{
if ($status_type = $this->getStatusType($http_code)) {
return $status_type[0] == HTTP_HEADER_STATUS_INFORMATIONAL;
} else {
return false;
}
}
/**
* Checks if HTTP Status code is Successful (2xx)
*
* @return boolean
*/
function isSuccessful($http_code)
{
if ($status_type = $this->getStatusType($http_code)) {
return $status_type[0] == HTTP_HEADER_STATUS_SUCCESSFUL;
} else {
return false;
}
}
/**
* Checks if HTTP Status code is a Redirect (3xx)
*
* @return boolean
*/
function isRedirect($http_code)
{
if ($status_type = $this->getStatusType($http_code)) {
return $status_type[0] == HTTP_HEADER_STATUS_REDIRECT;
} else {
return false;
}
}
/**
* Checks if HTTP Status code is a Client Error (4xx)
*
* @return boolean
*/
function isClientError($http_code)
{
if ($status_type = $this->getStatusType($http_code)) {
return $status_type[0] == HTTP_HEADER_STATUS_CLIENT_ERROR;
} else {
return false;
}
}
/**
* Checks if HTTP Status code is Server Error (5xx)
*
* @return boolean
*/
function isServerError($http_code)
{
if ($status_type = $this->getStatusType($http_code)) {
return $status_type[0] == HTTP_HEADER_STATUS_SERVER_ERROR;
} else {
return false;
}
}
/**
* Checks if HTTP Status code is Server OR Client Error (4xx or 5xx)
*
* @return boolean
*/
function isError($http_code)
{
if ($status_type = $this->getStatusType($http_code)) {
return (($status_type == HTTP_HEADER_STATUS_CLIENT_ERROR) || ($status_type == HTTP_HEADER_STATUS_SERVER_ERROR)) ? true : false;
} else {
return false;
}
}
/**#@-*/
}
?>